PA28 pilot entering the traffic pattern for runway 15 at fly experiences a near midair collision wit...

Narrative:

I was on a 45 degree entry for landing on runway 15 at fly. I announced my position on CTAF south and east of the airport at 5 NM and then again as I entered the 45 degree entry to a left downwind for landing. A bonanza reported on CTAF that he was departing runway 15 and then announced turning eastbound. I took evasive action to quickly descend 200 - 300 feet as we were head on. The bonanza was climbing and passed directly over me and we missed by no more than 100 ft. I attempted to contact the bonanza after the near miss on CTAF but he did not respond. Fly is very near to cos class C airspace; a notch is cutout so that aircraft arriving and departing do not have to contact springs approach. Most aircraft departing the fly traffic pattern do contact springs approach for flight following; pick up clearances; etc. I suspect what happened was the bonanza switched frequencies immediately upon departure and contacted springs approach for a clearance. In doing so he was not on CTAF when I made my announcement of a 45 degree entry to downwind.fly can be very busy and I believe aircraft arriving or departing; not remaining in the pattern; should be required to contact springs approach. Basically put the class C floor over fly and install a procedure to resolve potential conflicts.

Original NASA ASRS Text

Title: PA28 pilot entering the traffic pattern for Runway 15 at FLY experiences a NMAC with a Bonanza departing Runway 15 and turning east. A head on situation develops with the PA28 pilot diving under the Bonanza to avoid collision.

Narrative: I was on a 45 degree entry for landing on Runway 15 at FLY. I announced my position on CTAF south and east of the airport at 5 NM and then again as I entered the 45 degree entry to a left downwind for landing. A bonanza reported on CTAF that he was departing runway 15 and then announced turning eastbound. I took evasive action to quickly descend 200 - 300 feet as we were head on. The bonanza was climbing and passed directly over me and we missed by no more than 100 ft. I attempted to contact the bonanza after the near miss on CTAF but he did not respond. FLY is very near to COS Class C airspace; a notch is cutout so that aircraft arriving and departing do not have to contact Springs Approach. Most aircraft departing the FLY traffic pattern do contact Springs Approach for flight following; pick up clearances; etc. I suspect what happened was the Bonanza switched frequencies immediately upon departure and contacted Springs Approach for a clearance. In doing so he was not on CTAF when I made my announcement of a 45 degree entry to downwind.FLY can be very busy and I believe aircraft arriving or departing; not remaining in the pattern; should be required to contact Springs Approach. Basically put the Class C floor over FLY and install a procedure to resolve potential conflicts.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1238426
Time
Date	201502
Local Time Of Day	0601-1200
Place
Locale Reference	FLY.Airport
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Bonanza 35
Flight Phase	Takeoff
Person 1
Function	Single Pilot
Qualification	Flight Crew Private Flight Crew Instrument
Experience	Flight Crew Last 90 Days 12 Flight Crew Total 803 Flight Crew Type 35.6
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 0 Vertical 100

PA28 pilot entering the traffic pattern for runway 15 at fly experiences a near midair collision with a bonanza departing runway 15 and turning east. A head on situation develops with the PA28 pilot diving under the bonanza to avoid collision.